<!--是所有页面的子页面-->
<template>
<!--  父级页面：控制除登录页以外所有页面共有的左侧菜单栏与顶部条-->
  <div style="display: flex">
<!--    左侧菜单栏-->
    <div :style="{width:(isCollapse ? '64px' : '208px')}">
      <el-menu background-color="#3c82f5"
      style="width: 100%;height:100vh;"
      text-color="#fff"
      active-text-color="#ff0"
      :collapse="isCollapse"
      unique-opened
      router
      :collapse-transition="false"
      >
<!--        菜单的顶部条-->
        <el-row style="padding-top: 10px;">
          <el-col :span="2"></el-col>
          <el-col :span="7" style="padding-left: 7px;">
            <el-avatar src="/imgs/admin/logo.png" style="width: 35px;height:35px;"></el-avatar>
          </el-col>
          <el-col :span="isCollapse ? 0 : 13">
            <span style="color:#fff;font-weight: bold;position: relative;top: 8px;left:2px">智慧车辆</span>
          </el-col>
        </el-row>
        <el-sub-menu index="1">
          <template #title>
            <el-icon><User/></el-icon><span>用户管理</span>
          </template>
          <el-menu-item index="user">用户列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="2">
          <template #title>
            <el-icon><Van/></el-icon><span>车辆管理</span>
          </template>
          <el-menu-item index="vehicle">车辆列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="3">
          <template #title>
            <el-icon><Location/></el-icon><span>围栏管理</span>
          </template>
          <el-menu-item index="geofence">围栏列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="4">
          <template #title>
            <el-icon><Place/></el-icon><span>调度管理</span>
          </template>
          <el-menu-item index="application">申请列表</el-menu-item>
          <el-menu-item index="audit">审批列表</el-menu-item>
          <el-menu-item index="distribute">车辆分配</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="5">
          <template #title>
            <el-icon><MessageBox/></el-icon><span>数据字典</span>
          </template>
          <el-menu-item index="dict">字典列表</el-menu-item>
        </el-sub-menu>
      </el-menu>
    </div>
<!--    右侧顶部条与主体内容（可变区域）-->
    <div :style="{width:(isCollapse ? 'calc(100% - 64px)' : 'calc(100% - 208px)')}">
<!--      右侧顶部条-->
      <el-header style="height: 10vh;background-color: #fff;padding-top: 22px">
        <el-row :gutter="10">
          <el-col :span="18">
            <el-icon style="font-size:20px;" @click="changeCollapse"><Expand/></el-icon>
          </el-col>
<!--          登陆人姓名与退出登录-->
          <el-col :span="6" style="position: relative">
            <el-dropdown trigger="click" style="position: absolute;right:20px;">
              <span style="font-size: 19px;font-weight: bold;">
                {{user.username}}
                  <el-icon><arrow-down /></el-icon>
              </span>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item @click="logout">退出登录</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
          </el-col>
        </el-row>
<!--        面包屑导航-->
        <el-breadcrumb separator="/" style="position:relative;top:20px;">
          <el-breadcrumb-item>首页</el-breadcrumb-item>
          <el-breadcrumb-item v-for="item in breadcrumb">{{item}}</el-breadcrumb-item>
        </el-breadcrumb>

      </el-header>
<!--      右侧主体内容（可变区域）-->
      <el-main style="height:90vh;padding:0;overflow-y: auto;">
        <router-view/>
      </el-main>

    </div>
  </div>
</template>

<script setup>
import {ref} from "vue";
//定义变量用来控制左侧菜单栏折叠
const isCollapse = ref(false);
//定义修改左侧菜单栏折叠的方法
const changeCollapse = () =>{
  isCollapse.value = !isCollapse.value;
}
const user = ref(getUser());
const logout = () =>{
  if(confirm('您确认要退出吗？')){
    //清空localStorage中的user数据
    localStorage.removeItem('user')
    //跳转到登录页面
    window.location.href='/login';
    //也需要将刚刚取出的登陆人数据清楚
    user.value='';
  }
}

//定义对象用来维护路由path与面包屑的对应关系
let map = {
  '/user':['用户管理','用户列表'],
  '/vehicle':['车辆管理','车辆列表'],
  '/geofence':['围栏管理','电子围栏'],
  '/application':['调度管理','申请列表'],
  '/audit':['调度管理','调度审核'],
  '/distribute':['调度管理','用车分配'],
  '/dict':['字典管理','字典列表']
}
//定义对象用来保存面包屑当前展示的值
const breadcrumb = ref(['字典管理','字典列表'])
</script>